1110011212091 has 2 divisors, whose sum is σ = 1110011212092. Its totient is φ = 1110011212090.

The previous prime is 1110011212087. The next prime is 1110011212109. The reversal of 1110011212091 is 1902121100111.

Together with next prime (1110011212109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (1902121100111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1110011212091 - 2² = 1110011212087 is a prime.

It is not a weakly prime, because it can be changed into another prime (1110071212091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555005606045 + 555005606046.

It is an arithmetic number, because the mean of its divisors is an integer number (555005606046).

Almost surely, 2^{1110011212091} is an apocalyptic number.

1110011212091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110011212091 is an equidigital number, since it uses as much as digits as its factorization.

1110011212091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 20.

The spelling of 1110011212091 in words is "one trillion, one hundred ten billion, eleven million, two hundred twelve thousand, ninety-one".